The correct answer is A. good stability.
A good control system should be stable, meaning that it should not oscillate or diverge under normal operating conditions. However, a stable system may not be responsive, accurate, or have sufficient power handling capacity.
A responsive system is one that reacts quickly to changes in its input. An accurate system is one that produces the desired output with a high degree of precision. A system with sufficient power handling capacity is one that can handle the maximum power that is likely to be applied to it without damage.
In conclusion, a good control system should be stable, responsive, accurate, and have sufficient power handling capacity. However, these four features are not always compatible with each other, and a system that is optimized for one feature may not be optimal for another.